TSTP Solution File: GRP229-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP229-1 : TPTP v8.1.0. Released v2.5.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n017.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Sat Jul 16 11:46:25 EDT 2022

% Result   : Unsatisfiable 0.19s 0.43s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : GRP229-1 : TPTP v8.1.0. Released v2.5.0.
% 0.04/0.13  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n017.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Tue Jun 14 06:37:38 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.19/0.43  
% 0.19/0.43  SPASS V 3.9 
% 0.19/0.43  SPASS beiseite: Proof found.
% 0.19/0.43  % SZS status Theorem
% 0.19/0.43  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.19/0.43  SPASS derived 484 clauses, backtracked 251 clauses, performed 12 splits and kept 456 clauses.
% 0.19/0.43  SPASS allocated 63449 KBytes.
% 0.19/0.43  SPASS spent	0:00:00.08 on the problem.
% 0.19/0.43  		0:00:00.03 for the input.
% 0.19/0.43  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.43  		0:00:00.00 for inferences.
% 0.19/0.43  		0:00:00.00 for the backtracking.
% 0.19/0.43  		0:00:00.03 for the reduction.
% 0.19/0.43  
% 0.19/0.43  
% 0.19/0.43  Here is a proof with depth 5, length 274 :
% 0.19/0.43  % SZS output start Refutation
% 0.19/0.43  1[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7)** equal(inverse(sk_c1),sk_c8).
% 0.19/0.43  2[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8)** equal(inverse(sk_c1),sk_c8).
% 0.19/0.43  3[0:Inp] ||  -> equal(inverse(sk_c1),sk_c8) equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.43  4[0:Inp] ||  -> equal(inverse(sk_c1),sk_c8) equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.43  5[0:Inp] ||  -> equal(inverse(sk_c1),sk_c8) equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.43  6[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8)** equal(inverse(sk_c1),sk_c8).
% 0.19/0.43  7[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  8[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  9[0:Inp] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)** equal(multiply(sk_c1,sk_c7),sk_c8).
% 0.19/0.43  11[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6)** equal(multiply(sk_c1,sk_c7),sk_c8).
% 0.19/0.43  12[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  13[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  14[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  15[0:Inp] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  16[0:Inp] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  17[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  18[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  19[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  20[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  21[0:Inp] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  22[0:Inp] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7)** equal(multiply(sk_c2,sk_c8),sk_c3).
% 0.19/0.43  23[0:Inp] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  24[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  25[0:Inp] ||  -> equal(inverse(sk_c8),sk_c7)** equal(inverse(sk_c2),sk_c8).
% 0.19/0.43  26[0:Inp] ||  -> equal(inverse(sk_c4),sk_c8) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  27[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.43  28[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.43  29[0:Inp] ||  -> equal(inverse(sk_c2),sk_c8) equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.43  30[0:Inp] ||  -> equal(inverse(sk_c5),sk_c8) equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  31[0:Inp] || equal(inverse(u),sk_c8) equal(multiply(u,sk_c7),sk_c8)** equal(multiply(sk_c8,v),sk_c7)** equal(multiply(w,sk_c8),v)* equal(inverse(w),sk_c8) equal(inverse(sk_c8),sk_c7) equal(inverse(x),sk_c8) equal(multiply(x,sk_c7),sk_c8)** equal(multiply(sk_c8,y),sk_c7)** equal(multiply(z,sk_c8),y)* equal(inverse(z),sk_c8) -> .
% 0.19/0.43  32[0:Inp] ||  -> equal(multiply(identity,u),u)**.
% 0.19/0.43  33[0:Inp] ||  -> equal(multiply(inverse(u),u),identity)**.
% 0.19/0.43  34[0:Inp] ||  -> equal(multiply(multiply(u,v),w),multiply(u,multiply(v,w)))**.
% 0.19/0.43  35[0:Con:31.6] || equal(inverse(u),sk_c8) equal(inverse(v),sk_c8) equal(inverse(sk_c8),sk_c7) equal(multiply(u,sk_c8),w)*+ equal(multiply(v,sk_c7),sk_c8)** equal(multiply(sk_c8,w),sk_c7)** -> .
% 0.19/0.43  36[1:Spt:35.1,35.4] || equal(inverse(u),sk_c8) equal(multiply(u,sk_c7),sk_c8)** -> .
% 0.19/0.43  39[2:Spt:1.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.43  47[3:Spt:7.1] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  49[3:SpL:47.0,36.1] || equal(inverse(sk_c1),sk_c8)** equal(sk_c8,sk_c8) -> .
% 0.19/0.43  50[3:Obv:49.1] || equal(inverse(sk_c1),sk_c8)** -> .
% 0.19/0.43  51[3:Rew:39.0,50.0] || equal(sk_c8,sk_c8)* -> .
% 0.19/0.43  52[3:Obv:51.0] ||  -> .
% 0.19/0.43  53[3:Spt:52.0,7.1,47.0] || equal(multiply(sk_c1,sk_c7),sk_c8)** -> .
% 0.19/0.43  54[3:Spt:52.0,7.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.19/0.43  56[3:MRR:8.1,53.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.43  59[3:MRR:9.1,53.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.43  66[3:SpL:59.0,36.1] || equal(inverse(sk_c4),sk_c8)** equal(sk_c8,sk_c8) -> .
% 0.19/0.43  67[3:Obv:66.1] || equal(inverse(sk_c4),sk_c8)** -> .
% 0.19/0.43  68[3:Rew:56.0,67.0] || equal(sk_c8,sk_c8)* -> .
% 0.19/0.43  69[3:Obv:68.0] ||  -> .
% 0.19/0.43  70[2:Spt:69.0,1.1,39.0] || equal(inverse(sk_c1),sk_c8)** -> .
% 0.19/0.43  71[2:Spt:69.0,1.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.19/0.43  73[2:MRR:2.1,70.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.43  76[2:MRR:3.0,70.0] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.43  83[2:SpL:76.0,36.1] || equal(inverse(sk_c4),sk_c8)** equal(sk_c8,sk_c8) -> .
% 0.19/0.43  84[2:Obv:83.1] || equal(inverse(sk_c4),sk_c8)** -> .
% 0.19/0.43  85[2:Rew:73.0,84.0] || equal(sk_c8,sk_c8)* -> .
% 0.19/0.43  86[2:Obv:85.0] ||  -> .
% 0.19/0.43  87[1:Spt:86.0,35.0,35.2,35.3,35.5] || equal(inverse(u),sk_c8) equal(inverse(sk_c8),sk_c7) equal(multiply(u,sk_c8),v)*+ equal(multiply(sk_c8,v),sk_c7)** -> .
% 0.19/0.43  89[1:SpL:32.0,87.2] || equal(inverse(identity),sk_c8) equal(inverse(sk_c8),sk_c7) equal(sk_c8,u) equal(multiply(sk_c8,u),sk_c7)** -> .
% 0.19/0.43  90[2:Spt:1.0] ||  -> equal(inverse(sk_c8),sk_c7)**.
% 0.19/0.43  92[2:Rew:90.0,89.1] || equal(inverse(identity),sk_c8) equal(sk_c7,sk_c7) equal(sk_c8,u) equal(multiply(sk_c8,u),sk_c7)** -> .
% 0.19/0.43  95[2:Obv:92.1] || equal(inverse(identity),sk_c8) equal(sk_c8,u) equal(multiply(sk_c8,u),sk_c7)** -> .
% 0.19/0.43  98[3:Spt:6.0] ||  -> equal(inverse(sk_c5),sk_c8)**.
% 0.19/0.43  100[4:Spt:2.0] ||  -> equal(inverse(sk_c4),sk_c8)**.
% 0.19/0.43  102[5:Spt:5.1] ||  -> equal(multiply(sk_c5,sk_c8),sk_c6)**.
% 0.19/0.43  105[2:SpR:90.0,33.0] ||  -> equal(multiply(sk_c7,sk_c8),identity)**.
% 0.19/0.43  106[3:SpR:98.0,33.0] ||  -> equal(multiply(sk_c8,sk_c5),identity)**.
% 0.19/0.43  107[4:SpR:100.0,33.0] ||  -> equal(multiply(sk_c8,sk_c4),identity)**.
% 0.19/0.43  108[6:Spt:4.1] ||  -> equal(multiply(sk_c8,sk_c6),sk_c7)**.
% 0.19/0.43  110[7:Spt:3.1] ||  -> equal(multiply(sk_c4,sk_c7),sk_c8)**.
% 0.19/0.43  116[0:SpR:33.0,34.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),multiply(identity,v))**.
% 0.19/0.43  118[2:SpR:105.0,34.0] ||  -> equal(multiply(sk_c7,multiply(sk_c8,u)),multiply(identity,u))**.
% 0.19/0.43  119[6:SpR:108.0,34.0] ||  -> equal(multiply(sk_c8,multiply(sk_c6,u)),multiply(sk_c7,u))**.
% 0.19/0.43  121[2:Rew:32.0,118.0] ||  -> equal(multiply(sk_c7,multiply(sk_c8,u)),u)**.
% 0.19/0.43  122[0:Rew:32.0,116.0] ||  -> equal(multiply(inverse(u),multiply(u,v)),v)**.
% 0.19/0.43  132[6:SpR:108.0,121.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c6)**.
% 0.19/0.43  133[3:SpR:106.0,121.0] ||  -> equal(multiply(sk_c7,identity),sk_c5)**.
% 0.19/0.43  134[4:SpR:107.0,121.0] ||  -> equal(multiply(sk_c7,identity),sk_c4)**.
% 0.19/0.43  135[4:Rew:133.0,134.0] ||  -> equal(sk_c5,sk_c4)**.
% 0.19/0.43  137[5:Rew:135.0,102.0] ||  -> equal(multiply(sk_c4,sk_c8),sk_c6)**.
% 0.19/0.43  141[4:Rew:135.0,133.0] ||  -> equal(multiply(sk_c7,identity),sk_c4)**.
% 0.19/0.43  146[6:SpR:132.0,34.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),multiply(sk_c6,u))**.
% 0.19/0.43  148[4:SpR:141.0,34.0] ||  -> equal(multiply(sk_c7,multiply(identity,u)),multiply(sk_c4,u))**.
% 0.19/0.43  150[4:Rew:32.0,148.0] ||  -> equal(multiply(sk_c4,u),multiply(sk_c7,u))**.
% 0.19/0.43  151[5:Rew:150.0,137.0] ||  -> equal(multiply(sk_c7,sk_c8),sk_c6)**.
% 0.19/0.43  152[7:Rew:150.0,110.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c8)**.
% 0.19/0.43  156[5:Rew:105.0,151.0] ||  -> equal(identity,sk_c6)**.
% 0.19/0.43  157[5:Rew:156.0,32.0] ||  -> equal(multiply(sk_c6,u),u)**.
% 0.19/0.43  158[5:Rew:156.0,33.0] ||  -> equal(multiply(inverse(u),u),sk_c6)**.
% 0.19/0.43  159[5:Rew:156.0,105.0] ||  -> equal(multiply(sk_c7,sk_c8),sk_c6)**.
% 0.19/0.43  160[5:Rew:156.0,107.0] ||  -> equal(multiply(sk_c8,sk_c4),sk_c6)**.
% 0.19/0.43  161[5:Rew:156.0,141.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c4)**.
% 0.19/0.43  162[5:Rew:156.0,95.0] || equal(inverse(sk_c6),sk_c8) equal(sk_c8,u) equal(multiply(sk_c8,u),sk_c7)** -> .
% 0.19/0.43  163[7:Rew:132.0,152.0] ||  -> equal(sk_c8,sk_c6)**.
% 0.19/0.43  164[7:Rew:163.0,90.0] ||  -> equal(inverse(sk_c6),sk_c7)**.
% 0.19/0.43  165[7:Rew:163.0,100.0] ||  -> equal(inverse(sk_c4),sk_c6)**.
% 0.19/0.43  171[6:Rew:157.0,146.0] ||  -> equal(multiply(sk_c7,multiply(sk_c7,u)),u)**.
% 0.19/0.43  173[7:Rew:157.0,160.0,163.0,160.0] ||  -> equal(sk_c6,sk_c4)**.
% 0.19/0.43  176[7:Rew:173.0,163.0] ||  -> equal(sk_c8,sk_c4)**.
% 0.19/0.43  177[7:Rew:173.0,164.0] ||  -> equal(inverse(sk_c4),sk_c7)**.
% 0.19/0.43  178[7:Rew:173.0,165.0] ||  -> equal(inverse(sk_c4),sk_c4)**.
% 0.19/0.43  179[7:Rew:173.0,157.0] ||  -> equal(multiply(sk_c4,u),u)**.
% 0.19/0.43  181[7:Rew:177.0,178.0] ||  -> equal(sk_c4,sk_c7)**.
% 0.19/0.43  184[7:Rew:181.0,173.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.43  186[7:Rew:181.0,176.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.43  187[7:Rew:181.0,177.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.43  191[7:Rew:181.0,179.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.43  192[7:Rew:184.0,158.0] ||  -> equal(multiply(inverse(u),u),sk_c7)**.
% 0.19/0.43  200[7:Rew:191.0,162.2,186.0,162.2,186.0,162.1,187.0,162.0,184.0,162.0,186.0,162.0] || equal(sk_c7,sk_c7)* equal(sk_c7,u)* equal(u,sk_c7)* -> .
% 0.19/0.43  201[7:Obv:200.1] || equal(u,sk_c7)* -> .
% 0.19/0.43  202[7:UnC:201.0,192.0] ||  -> .
% 0.19/0.43  204[7:Spt:202.0,3.1,110.0] || equal(multiply(sk_c4,sk_c7),sk_c8)** -> .
% 0.19/0.43  205[7:Spt:202.0,3.0] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.43  206[7:Rew:150.0,204.0] || equal(multiply(sk_c7,sk_c7),sk_c8)** -> .
% 0.19/0.43  207[7:Rew:132.0,206.0] || equal(sk_c8,sk_c6)** -> .
% 0.19/0.43  208[6:Rew:132.0,27.1,150.0,27.1] ||  -> equal(inverse(sk_c2),sk_c8)** equal(sk_c8,sk_c6).
% 0.19/0.43  209[7:MRR:208.1,207.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  210[6:Rew:157.0,119.0] ||  -> equal(multiply(sk_c8,u),multiply(sk_c7,u))**.
% 0.19/0.43  214[6:Rew:210.0,108.0] ||  -> equal(multiply(sk_c7,sk_c6),sk_c7)**.
% 0.19/0.43  215[6:Rew:161.0,214.0] ||  -> equal(sk_c4,sk_c7)**.
% 0.19/0.43  222[6:Rew:132.0,9.0,215.0,9.0] ||  -> equal(sk_c8,sk_c6) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  223[7:MRR:222.0,207.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  224[6:Rew:210.0,15.1,132.0,15.0,215.0,15.0] ||  -> equal(sk_c8,sk_c6) equal(multiply(sk_c7,sk_c3),sk_c7)**.
% 0.19/0.43  225[7:MRR:224.0,207.0] ||  -> equal(multiply(sk_c7,sk_c3),sk_c7)**.
% 0.19/0.43  226[6:Rew:132.0,21.0,215.0,21.0] ||  -> equal(sk_c8,sk_c6) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  227[7:MRR:226.0,207.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  259[7:SpR:205.0,158.0] ||  -> equal(multiply(sk_c8,sk_c1),sk_c6)**.
% 0.19/0.43  261[7:SpR:209.0,158.0] ||  -> equal(multiply(sk_c8,sk_c2),sk_c6)**.
% 0.19/0.43  263[7:Rew:210.0,259.0] ||  -> equal(multiply(sk_c7,sk_c1),sk_c6)**.
% 0.19/0.43  264[7:Rew:210.0,261.0] ||  -> equal(multiply(sk_c7,sk_c2),sk_c6)**.
% 0.19/0.43  274[0:SpR:122.0,122.0] ||  -> equal(multiply(inverse(inverse(u)),v),multiply(u,v))**.
% 0.19/0.43  277[7:SpR:223.0,122.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.43  284[7:SpR:227.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.43  286[5:SpR:158.0,122.0] ||  -> equal(multiply(inverse(inverse(u)),sk_c6),u)**.
% 0.19/0.43  291[7:Rew:205.0,277.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.43  292[7:Rew:210.0,291.0] ||  -> equal(multiply(sk_c7,sk_c8),sk_c7)**.
% 0.19/0.43  293[7:Rew:159.0,292.0] ||  -> equal(sk_c6,sk_c7)**.
% 0.19/0.43  295[7:Rew:293.0,207.0] || equal(sk_c8,sk_c7)** -> .
% 0.19/0.43  299[7:Rew:293.0,157.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.43  301[7:Rew:293.0,263.0] ||  -> equal(multiply(sk_c7,sk_c1),sk_c7)**.
% 0.19/0.43  302[7:Rew:293.0,264.0] ||  -> equal(multiply(sk_c7,sk_c2),sk_c7)**.
% 0.19/0.43  304[7:Rew:299.0,225.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.43  305[7:Rew:299.0,171.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.43  306[7:Rew:299.0,210.0] ||  -> equal(multiply(sk_c8,u),u)**.
% 0.19/0.43  317[7:Rew:299.0,301.0] ||  -> equal(sk_c7,sk_c1)**.
% 0.19/0.43  325[7:Rew:317.0,295.0] || equal(sk_c8,sk_c1)** -> .
% 0.19/0.43  327[7:Rew:317.0,304.0] ||  -> equal(sk_c3,sk_c1)**.
% 0.19/0.43  328[7:Rew:317.0,302.0] ||  -> equal(multiply(sk_c1,sk_c2),sk_c1)**.
% 0.19/0.43  329[7:Rew:317.0,305.0] ||  -> equal(multiply(sk_c1,u),u)**.
% 0.19/0.43  330[7:Rew:329.0,328.0] ||  -> equal(sk_c2,sk_c1)**.
% 0.19/0.43  351[7:Rew:330.0,284.0,327.0,284.0] ||  -> equal(multiply(inverse(sk_c1),sk_c1),sk_c8)**.
% 0.19/0.43  352[7:Rew:205.0,351.0] ||  -> equal(multiply(sk_c8,sk_c1),sk_c8)**.
% 0.19/0.43  353[7:Rew:306.0,352.0] ||  -> equal(sk_c8,sk_c1)**.
% 0.19/0.43  354[7:MRR:353.0,325.0] ||  -> .
% 0.19/0.43  372[6:Spt:354.0,4.1,108.0] || equal(multiply(sk_c8,sk_c6),sk_c7)** -> .
% 0.19/0.43  373[6:Spt:354.0,4.0] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.43  374[5:Rew:274.0,286.0] ||  -> equal(multiply(u,sk_c6),u)**.
% 0.19/0.43  375[6:Rew:374.0,372.0] || equal(sk_c8,sk_c7)** -> .
% 0.19/0.43  383[5:Rew:374.0,28.1] ||  -> equal(inverse(sk_c2),sk_c8)** equal(sk_c8,sk_c7).
% 0.19/0.43  384[6:MRR:383.1,375.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  392[5:Rew:374.0,16.0] ||  -> equal(sk_c8,sk_c7) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  393[6:MRR:392.0,375.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  394[5:Rew:374.0,22.0] ||  -> equal(sk_c8,sk_c7) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  395[6:MRR:394.0,375.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  426[6:SpR:395.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.43  428[6:Rew:393.0,426.0,384.0,426.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.43  429[6:MRR:428.0,375.0] ||  -> .
% 0.19/0.43  430[5:Spt:429.0,5.1,102.0] || equal(multiply(sk_c5,sk_c8),sk_c6)** -> .
% 0.19/0.43  431[5:Spt:429.0,5.0] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.43  432[5:Rew:135.0,430.0] || equal(multiply(sk_c4,sk_c8),sk_c6)** -> .
% 0.19/0.43  433[5:Rew:150.0,432.0] || equal(multiply(sk_c7,sk_c8),sk_c6)** -> .
% 0.19/0.43  434[5:Rew:105.0,433.0] || equal(identity,sk_c6)** -> .
% 0.19/0.43  435[4:Rew:105.0,29.1,150.0,29.1,135.0,29.1] ||  -> equal(inverse(sk_c2),sk_c8)** equal(identity,sk_c6).
% 0.19/0.43  436[5:MRR:435.1,434.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  437[4:Rew:105.0,11.0,150.0,11.0,135.0,11.0] ||  -> equal(identity,sk_c6) equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  438[5:MRR:437.0,434.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  439[4:Rew:105.0,17.0,150.0,17.0,135.0,17.0] ||  -> equal(identity,sk_c6) equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  440[5:MRR:439.0,434.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  441[4:Rew:105.0,23.0,150.0,23.0,135.0,23.0] ||  -> equal(identity,sk_c6) equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  442[5:MRR:441.0,434.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  465[5:SpR:438.0,122.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.43  467[5:Rew:431.0,465.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.43  469[5:SpR:440.0,122.0] ||  -> equal(multiply(inverse(sk_c8),sk_c7),sk_c3)**.
% 0.19/0.43  471[5:Rew:90.0,469.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c3)**.
% 0.19/0.43  473[5:SpR:442.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.43  475[5:Rew:440.0,473.0,436.0,473.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.43  476[5:Rew:475.0,90.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.43  481[5:Rew:475.0,105.0] ||  -> equal(multiply(sk_c7,sk_c7),identity)**.
% 0.19/0.43  486[5:Rew:475.0,95.2] || equal(inverse(identity),sk_c8) equal(sk_c8,u) equal(multiply(sk_c7,u),sk_c7)** -> .
% 0.19/0.43  494[5:Rew:475.0,467.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.19/0.43  497[5:Rew:471.0,481.0] ||  -> equal(identity,sk_c3)**.
% 0.19/0.43  500[5:Rew:497.0,32.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.19/0.43  503[5:Rew:471.0,494.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.43  505[5:Rew:503.0,497.0] ||  -> equal(identity,sk_c7)**.
% 0.19/0.43  511[5:Rew:503.0,500.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.43  528[5:Rew:511.0,486.2,475.0,486.1,476.0,486.0,505.0,486.0,475.0,486.0] || equal(sk_c7,sk_c7)* equal(sk_c7,u)* equal(u,sk_c7)* -> .
% 0.19/0.43  529[5:Obv:528.1] || equal(u,sk_c7)* -> .
% 0.19/0.43  530[5:UnC:529.0,122.0] ||  -> .
% 0.19/0.43  532[4:Spt:530.0,2.0,100.0] || equal(inverse(sk_c4),sk_c8)** -> .
% 0.19/0.43  533[4:Spt:530.0,2.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.43  534[4:MRR:26.0,532.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.43  535[4:MRR:8.0,532.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.43  536[4:MRR:14.0,532.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.43  537[4:MRR:20.0,532.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.43  561[4:SpR:535.0,122.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.43  563[4:Rew:533.0,561.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.43  565[4:SpR:536.0,122.0] ||  -> equal(multiply(inverse(sk_c8),sk_c7),sk_c3)**.
% 0.19/0.43  567[4:Rew:90.0,565.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c3)**.
% 0.19/0.43  569[4:SpR:537.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.43  571[4:Rew:536.0,569.0,534.0,569.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.43  573[4:Rew:571.0,90.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.43  576[4:Rew:571.0,105.0] ||  -> equal(multiply(sk_c7,sk_c7),identity)**.
% 0.19/0.43  584[4:Rew:571.0,95.2] || equal(inverse(identity),sk_c8) equal(sk_c8,u) equal(multiply(sk_c7,u),sk_c7)** -> .
% 0.19/0.43  591[4:Rew:571.0,563.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.19/0.43  594[4:Rew:567.0,576.0] ||  -> equal(identity,sk_c3)**.
% 0.19/0.43  596[4:Rew:594.0,32.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.19/0.43  599[4:Rew:567.0,591.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.43  601[4:Rew:599.0,594.0] ||  -> equal(identity,sk_c7)**.
% 0.19/0.43  607[4:Rew:599.0,596.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.43  623[4:Rew:607.0,584.2,571.0,584.1,573.0,584.0,601.0,584.0,571.0,584.0] || equal(sk_c7,sk_c7)* equal(sk_c7,u)* equal(u,sk_c7)* -> .
% 0.19/0.43  624[4:Obv:623.1] || equal(u,sk_c7)* -> .
% 0.19/0.44  625[4:UnC:624.0,122.0] ||  -> .
% 0.19/0.44  627[3:Spt:625.0,6.0,98.0] || equal(inverse(sk_c5),sk_c8)** -> .
% 0.19/0.44  628[3:Spt:625.0,6.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.44  629[3:MRR:30.0,627.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.44  630[3:MRR:12.0,627.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.44  631[3:MRR:18.0,627.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.44  632[3:MRR:24.0,627.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.44  644[3:SpR:630.0,122.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.44  646[3:Rew:628.0,644.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.44  648[3:SpR:631.0,122.0] ||  -> equal(multiply(inverse(sk_c8),sk_c7),sk_c3)**.
% 0.19/0.44  650[3:Rew:90.0,648.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c3)**.
% 0.19/0.44  652[3:SpR:632.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.44  654[3:Rew:631.0,652.0,629.0,652.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.44  656[3:Rew:654.0,90.0] ||  -> equal(inverse(sk_c7),sk_c7)**.
% 0.19/0.44  659[3:Rew:654.0,105.0] ||  -> equal(multiply(sk_c7,sk_c7),identity)**.
% 0.19/0.44  665[3:Rew:654.0,95.2] || equal(inverse(identity),sk_c8) equal(sk_c8,u) equal(multiply(sk_c7,u),sk_c7)** -> .
% 0.19/0.44  671[3:Rew:654.0,646.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.19/0.44  673[3:Rew:650.0,659.0] ||  -> equal(identity,sk_c3)**.
% 0.19/0.44  674[3:Rew:673.0,32.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.19/0.44  676[3:Rew:650.0,671.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.44  678[3:Rew:676.0,673.0] ||  -> equal(identity,sk_c7)**.
% 0.19/0.44  681[3:Rew:676.0,674.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.44  690[3:Rew:681.0,665.2,654.0,665.1,656.0,665.0,678.0,665.0,654.0,665.0] || equal(sk_c7,sk_c7)* equal(sk_c7,u)* equal(u,sk_c7)* -> .
% 0.19/0.44  691[3:Obv:690.1] || equal(u,sk_c7)* -> .
% 0.19/0.44  692[3:UnC:691.0,122.0] ||  -> .
% 0.19/0.44  694[2:Spt:692.0,1.0,90.0] || equal(inverse(sk_c8),sk_c7)** -> .
% 0.19/0.44  695[2:Spt:692.0,1.1] ||  -> equal(inverse(sk_c1),sk_c8)**.
% 0.19/0.44  696[2:MRR:25.0,694.0] ||  -> equal(inverse(sk_c2),sk_c8)**.
% 0.19/0.44  697[2:MRR:7.0,694.0] ||  -> equal(multiply(sk_c1,sk_c7),sk_c8)**.
% 0.19/0.44  698[2:MRR:13.0,694.0] ||  -> equal(multiply(sk_c8,sk_c3),sk_c7)**.
% 0.19/0.44  699[2:MRR:19.0,694.0] ||  -> equal(multiply(sk_c2,sk_c8),sk_c3)**.
% 0.19/0.44  705[2:SpR:697.0,122.0] ||  -> equal(multiply(inverse(sk_c1),sk_c8),sk_c7)**.
% 0.19/0.44  707[2:Rew:695.0,705.0] ||  -> equal(multiply(sk_c8,sk_c8),sk_c7)**.
% 0.19/0.44  709[2:SpR:698.0,122.0] ||  -> equal(multiply(inverse(sk_c8),sk_c7),sk_c3)**.
% 0.19/0.44  712[2:SpR:699.0,122.0] ||  -> equal(multiply(inverse(sk_c2),sk_c3),sk_c8)**.
% 0.19/0.44  714[2:Rew:698.0,712.0,696.0,712.0] ||  -> equal(sk_c8,sk_c7)**.
% 0.19/0.44  715[2:Rew:714.0,695.0] ||  -> equal(inverse(sk_c1),sk_c7)**.
% 0.19/0.44  717[2:Rew:714.0,694.0] || equal(inverse(sk_c7),sk_c7)** -> .
% 0.19/0.44  723[2:Rew:714.0,707.0] ||  -> equal(multiply(sk_c7,sk_c7),sk_c7)**.
% 0.19/0.44  725[2:Rew:714.0,709.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c3)**.
% 0.19/0.44  727[2:Rew:33.0,725.0] ||  -> equal(identity,sk_c3)**.
% 0.19/0.44  728[2:Rew:727.0,32.0] ||  -> equal(multiply(sk_c3,u),u)**.
% 0.19/0.44  729[2:Rew:727.0,33.0] ||  -> equal(multiply(inverse(u),u),sk_c3)**.
% 0.19/0.44  752[2:SpR:723.0,122.0] ||  -> equal(multiply(inverse(sk_c7),sk_c7),sk_c7)**.
% 0.19/0.44  754[2:Rew:729.0,752.0] ||  -> equal(sk_c3,sk_c7)**.
% 0.19/0.44  758[2:Rew:754.0,728.0] ||  -> equal(multiply(sk_c7,u),u)**.
% 0.19/0.44  759[2:Rew:754.0,729.0] ||  -> equal(multiply(inverse(u),u),sk_c7)**.
% 0.19/0.44  781[2:SpR:715.0,759.0] ||  -> equal(multiply(sk_c7,sk_c1),sk_c7)**.
% 0.19/0.44  786[2:Rew:758.0,781.0] ||  -> equal(sk_c7,sk_c1)**.
% 0.19/0.44  788[2:Rew:786.0,715.0] ||  -> equal(inverse(sk_c1),sk_c1)**.
% 0.19/0.44  789[2:Rew:786.0,717.0] || equal(inverse(sk_c1),sk_c1)** -> .
% 0.19/0.44  797[2:Rew:788.0,789.0] || equal(sk_c1,sk_c1)* -> .
% 0.19/0.44  798[2:Obv:797.0] ||  -> .
% 0.19/0.44  % SZS output end Refutation
% 0.19/0.44  Formulae used in the proof : prove_this_1 prove_this_2 prove_this_3 prove_this_4 prove_this_5 prove_this_6 prove_this_7 prove_this_8 prove_this_9 prove_this_11 prove_this_12 prove_this_13 prove_this_14 prove_this_15 prove_this_16 prove_this_17 prove_this_18 prove_this_19 prove_this_20 prove_this_21 prove_this_22 prove_this_23 prove_this_24 prove_this_25 prove_this_26 prove_this_27 prove_this_28 prove_this_29 prove_this_30 prove_this_31 left_identity left_inverse associativity
% 0.19/0.44  
%------------------------------------------------------------------------------